Unmanned underwater vehicle



FIG. 1 is a perspective view of an unmanned underwater vehicle showing the claimed design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The portions of the unmanned underwater vehicle shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for an unmanned underwater vehicle, as shown and described. 